#include<iostream >
using namespace std;
#include<vector>
const int N=1e5+10;
int n;
vector<int> v[N];
int main(){
	cin>>n;
	for(int i=1;i<n;i++){
		int a,b;
		cin>>a>>b;
		v[a].push_back(b);
		v[b].push_back(a);
	}
	return 0;
}
